Lubricator.



PATENTBD JUNE 5, 1906.

J. F. MUCANNA.

LUBRICATOR.

APPLIGATIGN FILED 1120.1. 190s.

o oo cao ooooooooo oooooovoo 560060600 nun D 0 UNITED STA'IES lPA'IEN T OFFICE.

JOHN F. MCCANNA, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE JOHN F. MCCANNA COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

LUBRICATOR'.

Patented June 5, 1906.

Original application Iled June 15,1903, Serial No.161,458. Divided and this application filed December l, 19.05. Serial No. 289.861.

To all whom, t Dba/ 7] concern:

Beit known that I, JOHN F. MCCANNA, a citizen of theV United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Lubricators, of which the following is a s ecication, reference being had therein to t e accompanying drawings.

This invention relates to force-feed lubricators, and has articular reference to iinprovements in t e means for adjusting or regulating the throw of the uinps thereof.

T he invention consists of tlie combinations and arrangements of parts hereinafter particularly described and then pointed out in the appended claims.

In the accompanying drawings, which illustrate one embodiment of the invention, Figure 1 is a vertical longitudinal sectional view through the reservoir, showing three lubricating-pumps and illustrating the adjusting devices associated therewith. Fig. 2 is a transverse vertical sectional view through the upper portion of the reservoir, showing one ol the pump-yokes and the adjustable abutment for varying the throw of the ump ,z and Fig. 3 is a sectional view on the ine :n x of Fig. 1, showing the arrangement of Valve mechanism for the particular style of pump illustrated.

In the present instance I have shown a lubricator with three pumps, but as the arrangement and construction of these pumps and the adjusting devices therefor are alike it is to be understood that the following description applies to each of the same. It is also to be understood that while three pumps are shown in the present instance one or more may be employed, depending u on the number of parts to be lubricated, eac pump being designed to deliver lubricant to a particular part.

In the drawings, 10 indicates a suitable reservoir, which is designed to contain the lubricant and is provided with a cover or top plate 11, suitably secured thereon. In the construction illustrated each pump comprises a cylinder 12 and a reciprocating piston 13.

The cylinder is rovided with a threaded extension 14, which asses through an opening in the bottom of tlie reservoir and receives a nut 15, which secures the cylinder to the reservoir. A suitable intakeassa e 16, which is controlled by an induction-va ve 1'?, leads to the cylinder, the outlet 18 of which 1s provided with an eduction-valve 19 and leads to a passage 2O in the extension 14. The passage 20 is governed by a s ringressed valve 21 and communicates wit a tu e or ppe 22, which leads to the part to be lubricate The piston 13 is provided at its up er end with an operating member, such as t e yoke 23, which in the present instance is substantially rectangular. The umps are located within the reservoir, and t e yokes 23' are al1L ranged in arallel-that is, with the openings thereof in ine.

23, is suitably j ournaled in the reservoir, and one end thereof asses throu h a lug 25, screwing in one o the end wal s of t e reservoir. An eccentric-sleeve 26 is loosely mounted on the shaft 24, so as to rotate thereon and is provided at its end adjacent to the plug 25 with a ratchet-wheel 27. A awlcarrier 28 is secured to the shaft 24 within the reservoir and is provided with a forwardlygages and is a pted to turn the ratchetwheel 27. A dog 30 is also mounted on' the plug 25 and held in engagement with the ratchet-wheel by an expansion-spring 31 to prevent backward movement of said ratchet.- wheel.

In operation an intermittent rotary motion is imparted to the eccentric, which, cooperating with the yokes 23, reciprocates the pump-pistons through the medium of an oscillating arm 32, fixed to the rotruding end of the shaft 24 and connected) by a suitable` link 33 to a suitable moving part of the mechanism being lubricated.

While I have described in detail the construction and arrangement of the pump and operating mechanism illustrated, and which forms a part of the subject-matter of and is claimed in an application filed by me June 15 1903, Serial No. 161,458, of which the present case is a division, it is to be understood that this is merely by way of example and that the invention herein may be employed with any other suitable or preferred construction of pump and arrangement of operating mechanism.

The present invention has particular refer- 'A shaft 24, extending through the yokes projecting spring-pressed pawl 29, which en- IOO ence to van adjustable abutment or bearing located within the reservoir and adapted to be adjusted from the outside of the reservolr to vary the throw or stroke of the pump without removing the cover or opening the res ervoir in any other manner.

In the present instance this abutment, drsignated 34, is formed at the end of a threaded extension 35 of a rod or stem 36, passing freely through an aperture in one of the walls of the reservoir, such as thel cover 11. The top of the yoke 23 is provided with a screwthreaded aperture with which the threaded extension of the stem engages so that the abutment extends into the yoke. By turning the stem 36 the distance between the abutment 34 and the bottom of the yoke may be varied to vary or entirely eliminate lost motion between the eccentric and yoke, and consequently the stroke of the piston is increased or decreased, de ending upon the direction of the rotation of the stem.

In the construction illustrated the stem 36 is polygonal in cross-section, it being shown as rectangular in the drawings, and passes through a similarly-shaped aperture in a nut 37 in threaded engagement with asleeve 38, which extends through the cover 11 and is .provided with a shoulder 39, between which and the inner face of the cover a spring-` From the foregoing it is obvious that by turning the stem, the upper end of which extends outside of the reservoir, the abutment is adjusted vertically in relation to the eccentric, and as the length of the stroke of the piston depends upon the distance between the abutment and the bottom of the yoke it is obvious that the quantity of oil discharged at each stroke of the pump may be regulated by merely turning the stem to set the abutment closer to or farther from the opposite wall of the yoke. The rates of delivery of the pumps may be varied while the automobile or other machine with which the lubricator is employed is in operation, and, if desired, any pump may be put out of action entirely by adjusting the abutment out of the range of movement of the eccentric. When the abutment is in the latter position, a preliminary lubrication may be given the bearing by attaching a handle or key to the stem and reci rocating the latter. Each pump has its a justment independent of any other pump, thou gh all 'of the pumps are driven from the same shaft. The adjusting-stem passes through the cover of the reservoir and works The washer 40 is designed to` loosely therethrou h. As the eccentric operates the piston t e adjusting-stem associated therewith being connected to the yoke thereof moves u and down through the cover and thus in icates the amount of movement of the piston. Such stem therefore serves as an indicator whereby the operator can tell approximately how much oil 1s being forced through each pump. If the rate of delivery indicated by the movement of the stem of any pump vis not what is desired, it can readily be changed merely by turning the stem, and this adjustment may be effected for each pump individually. Y

Having described my invention, what I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In combination in a force-feed lubricator, a reservoir, a pump arranged therein, means within the reservoir for driving the pump, and means extending from the outside into the reservoir for adjusting the throw of the pump, substantially as described.

2. In combination in a force-feed lubri'- cater, a reservoir, a pump within the reservoir, means for operating the pump arranged within the reservoir, and means for adjusting the throw of the ump extending outside of the reservoir, an(r movable therethrough to indicate the amount of the movement of the pump, substantially as described.

3. In combination in a force-feed lubricator, a reservoir, a pump therein, means for actuating the pump located within the reservoir, and mechanism arranged externally of the reservoir and connected to the said actuating means, said mechanism being adjustable to vary the movement of the actuator, substantially as described.

4. In a lubricator, the combination with a closed reservoir, la pump within the reservoir, a member within the reservoir and connected to the movable part of the pum to reciprocate the same, an adjustable .Imtment located in the reservoir and coperating with the said member to regulate the amount of movement of the pump, and a stem extend` ing from the abutment through the wall and outside of the reservoir to regulate the adjustment of the abutment.

5. In a lubricator, the combination with a reservoir, a pump within the reservoir, a member within the reservoir and connected to the movable partof the pump to reciprocate the same, and an adjustable stem extending through the wall of the reservoir to regulate the amount of movement of the said member and indicate the throw of the pump.

6. In combination in a force-feed lubricator, a reservoir, a plurality of pumps therein, a single shaft within the reservoir, means thereon for operating the pumps, each pump having its own adjusting means for altering its stroke independent of the other pumps and each adjusting means comprising IOO scacco a stem extending from the operating to a p'ointoutside the reservoir,,substantiallyl as described.,` y v 7.,', In alubricatonthe combination with a reservoir, and a plurality of pumps therein,

and means Within the reservoir common to vallvthe pumps forl operating the same, each pumphaving its oWn adjusting means for a1- tering its stroke independent of the other voir.

pumps and each adjustinglmeans comprising a stem co erating With t e operating means and exten 'ng to a point outside the reserervolr and fixed to the ump-piston, an eccentric turning Within t e yoke, an adjustable abutment extending into the yoke and provided with a stem which is in threaded engagement With the yoke and rojects through the top of the reservoir for adjusting the abutment.

9. In a device ofthe class described, the combination with a reservoir, of a pump located therein, a yoke connected to the plston of the pump, an eccentric coperatin with the yoke, an adjustable abutment carr1ed by the oke and comprising a rotatable stem eX-4 tending in the path of the eccentric, and means for holding the stern againstl rotation.

10. In a device of the class described, the

combination with a reservoir, of a pump located therein, a yoke fixed to the piston of the pump, an eccentric coperating with'the yoke, `a stem having a threaded extension passing through one of the arms of the yoke. l and normall extending in the path of the cccentric, a s eevev rotatably mounted in the Wall of the reservoir and through which the stem passes, a resilient Washer carried bythe sleeve and enga g the wall of the reservoir, and a nut on tbnstem in threaded engage- 'ment with the sleeve.

. 11. In a device of the class described, the combination with ,aclosed reservoir, of a Y pump therein, ayoke xed to the ump-piston, an eccentric turning'within t e yoke, a stem ol gonal in cross-section extending throu the top of the reservoir and having a threa ed extension passing throughthe top 'of the yoke and normally extending in the ath of the eccentric', a nut on the stem and avin van aperture conforming to the shape of theatt'er and engaging the top of the reservoir, a sleevel in threaded engagement with the nut and having a shoulderwithin the resv ervoir, and a s Img-Washer nter osed between the shoul er and the under ace of the to of the reservoir.

n testimony whereof I a'fIiX my signature in presence of tWo Witnesses.

' JOHN F. MCCANNA. Witnesses: ARTHUR B. SniBoLn, ELIZABETH MOLIToR. 

